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Is Lob.com API down?

Current status, daily uptime history and troubleshooting for the Lob.com API (Data Validation).

No, Lob.com is up

Lob.com answered our last daily check (Oct 24, 2026, 12:25 UTC) in 2690 ms with HTTP 200.

Checking Lob.com now…

Sending a request from our server.

Lob.com API uptime history

30 days agoLatest check
Uptime
2 checks so far
Last check
Oct 24, 2026, 12:25 UTC
Response
2690 ms · HTTP 200
Last up
Now

We check Lob.com's listed URL (https://lob.com/) once a day. History started when Lob.com was first checked, so new entries show fewer than 30 days.

Lob.com API not working for you?

  1. Lob.com needs an API key. A 401 or 403 usually means a missing, expired or mis-sent credential: check whether it belongs in a header or the query string.
  2. A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header.
  3. If calls fail only in the browser with a CORS error, Lob.com may not allow cross-origin requests. Call it from your server instead.
  4. If it works from one network but not another, check firewalls, VPNs and regional blocks.
  5. Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.

Data Validation APIs up at their last check

  1. 1US Autocomplete logo

    US Autocomplete API

    Online · 976 ms

    Enter address data quickly with real-time address suggestions.

    • Callable from the browser (CORS)
    • HTTPS
    apiKeyHTTPSCORS
  2. 2US Street Address logo

    US Street Address API

    Online · 559 ms

    Validate and append data for any US postal address.

    • Callable from the browser (CORS)
    • HTTPS
    apiKeyHTTPSCORS
  3. 3

    Attestwire API

    Online · 700 ms

    Validate EN 16931 e-invoices: XRechnung, ZUGFeRD, Factur-X, Peppol BIS.

    • Callable from the browser (CORS)
    • HTTPS
    apiKeyHTTPSCORS
  4. 4Postman Echo logo

    Postman Echo API

    Online · 2932 ms

    Test api server to receive and return value from HTTP method.

    • No API key needed
    • HTTPS
    No authHTTPSCORS ?
  5. 5

    Temsor API

    Online · 668 ms

    Validates Turkish national ID, tax number, IBAN, phone, plate and parses addresses.

    • Callable from the browser (CORS)
    • HTTPS
    apiKeyHTTPSCORS

Compare all Lob.com alternatives · APIs down right now

Lob.com API status FAQ

Is Lob.com API down right now?

Lob.com answered our last daily check (Oct 24, 2026, 12:25 UTC) in 2690 ms with HTTP 200. This page also runs a live check from our server when you open it, so you can see whether Lob.com is responding at this moment.

How do you check whether Lob.com API is up?

Once a day our checker requests Lob.com's listed URL (https://lob.com/) and records whether it answers within 15 seconds. Answers like 401 (needs a key), 403 (blocks bots) or 429 (rate-limited) count as up, because the server responded. The listed URL is often the documentation page, so an API endpoint can occasionally fail while its docs stay up.

What can I use if Lob.com API is down?

Free Data Validation APIs that were up at their last check include US Autocomplete, US Street Address, Attestwire. See the full list of Lob.com alternatives for a comparison.

Why does Lob.com API work for others but not for me?

Lob.com needs an API key. A 401 or 403 usually means a missing, expired or mis-sent credential: check whether it belongs in a header or the query string. A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header. If calls fail only in the browser with a CORS error, Lob.com may not allow cross-origin requests. Call it from your server instead.